Acetic Acid → 2-Chloro-9H-fluoren-9-one hydrazone

Participants

Reaction Steps

A mixture of 2-chloro 9-fluorenone (18) (5 g, 23.3 mmoL), hydrazine monohydrate (6 mL, 120 mmoL, 5.2 eq) and acetic acid (1 mL) in ethanol (150 mL ) was refluxed for 2.5 h. The mixture was then evaporated to dryness to provide 5.3 g (100%) of product which was used without further purification: mp 139°-143° C..

Provenance & Evidence